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All-optical Data-input Device Based on Fiber-optic Interferometric Strain Gauges.

Fürstenau, N. and Schmidt, W. (1990) All-optical Data-input Device Based on Fiber-optic Interferometric Strain Gauges. In: SPIE-Proceedings, Vol. 1368, pp. 357-366. SPIE. Fiber-Optic and Laser Sensors VIII (SPIE-Conference).

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An experimental fiber-optic data-input device called data-cube is described. Three double-polarization Michelson-interferometers on separate panels are mounted in a cubic housing. They are used as optical strain gauges for measuring the bending-induced surface strain of elastic bars. Two interferometers serve as force- or displacement sensors for manual input commands, the third one measures the orientation of the cube with respect to the gravity vector by means of an accelerometer arrangement. The measured characteristics of strain via bending, as induced by the external force, is compared with the theoretical relationship. First results of a polarimetric method for initialization of the incremental readout are presented. It is based on measuring the phase difference between the two orthogonally polarized interference signals.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=1990, pages=9,
Title:All-optical Data-input Device Based on Fiber-optic Interferometric Strain Gauges.
AuthorsInstitution or Email of Authors
Journal or Publication Title:SPIE-Proceedings
Volume:Vol. 1368
Page Range:pp. 357-366
Keywords:Data Cube, Michelson-Interferometer
Event Title:Fiber-Optic and Laser Sensors VIII (SPIE-Conference)
HGF - Research field:UNSPECIFIED
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:UNSPECIFIED
DLR - Program:no assignment
DLR - Research theme (Project):L -- no assignement
Location: Braunschweig
Institutes and Institutions:Institute of Flight Control
Deposited By: elib DLR-Beauftragter
Deposited On:02 Apr 2006
Last Modified:27 Apr 2009 07:07

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